 |
| распространение волн: 62 phrases in 15 subjects |
| Astronautics | 12 |
| Aviation | 3 |
| Construction | 2 |
| Geology | 3 |
| Hydraulic engineering | 12 |
| Mathematics | 2 |
| Metallurgy | 1 |
| Mining | 2 |
| Oil and gas technology | 7 |
| Physics | 1 |
| Radio | 7 |
| Seismology | 1 |
| Surveying | 1 |
| Technology | 7 |
| Trucks/Lorries | 1 |